When to Plant Lemon Thyme in Cobb County, GA
Lemon thyme is a low-growing perennial herb with tiny, citrus-scented leaves. It combines the savory quality of thyme with a bright lemon flavor, excellent with fish and poultry.
Cobb County, Georgia is in USDA Zone 7b. The average last spring frost is March 31 and the first fall frost is November 1, giving you a growing season of approximately 215 days.
At an elevation of 387 feet, Cobb County receives approximately 57.2 inches of rainfall annually with predominantly clay loam soil. Summer highs average 89°F, providing good warmth for Lemon Thyme during the growing season. Clay soil retains moisture well for Lemon Thyme, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Lemon Thyme root diseases.
Cobb County Soil Profile
Soil Type
Clay Loam
Soil pH
5.3-6.5
Drainage
Well Drained
Plant Planting Risk Windows
Percentages indicate frost risk at transplant. The 70% safe window means there is a 30% chance of frost after transplant — suitable for cold-hardy crops or gardeners with frost protection. The 90% safe window is best for tender plants.
Plant Water Budget
Water stress score is 6/10 — consider drought-tolerant varieties and mulching
Lemon Thyme Planting Timeline — Cobb County, GA
Lemon Thyme Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Transplant Outdoors | April 7 | Apr 7 – Apr 21 |
| Harvest | June 16 | Jun 16 – Aug 18 |
Plant 0.5" deep · 8" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | — |
| April | Transplant Outdoors |
| May | — |
| June | Harvest |
| July | Harvest |
| August | Harvest |
| September | — |
| October | — |
| November | — |
| December | — |
Growing Conditions
Sun
Full Sun (6-8+ hours)
Water
Low — drought tolerant
Days to Maturity
70–90 days
Soil pH
6 – 8
USDA Zone
Zone 7b
Growing Season
215 days
Growing Tips for Cobb County
Start from cuttings or divisions. Plant in well-drained soil. Trim back after flowering. Use as a fragrant ground cover or edging plant along garden paths.
Companion Planting
Good Companions
Level Up Your Garden
Lemon Thyme in Other Locations
Frequently Asked Questions
When should I plant Lemon Thyme in Cobb County, GA?
Cobb County is in Zone 7b with an average last frost of March 31. Plan your Lemon Thyme planting based on this frost date — see the calendar above for exact timing.
What planting zone is Cobb County, GA?
Cobb County, Georgia is in USDA Hardiness Zone 7b. The average last spring frost is March 31 and first fall frost is November 1.
Plan Your Garden with Confidence
Get our free Garden Planner — designed to help Cobb County gardeners in Zone 7b organize planting dates, track what's growing, and never miss a planting window.
Get Your Free Garden Planner →Free download. Plan your entire garden season in minutes.